Hi,
Having replaced a faulty PRV, renewed inhibitor, and recharged the system with help and advice from this forum my boiler has now developed an annoying "Droning" noise. Its loudest when it first fires up and slowly dies away after around 10 minutes. The sound seems to be comning from the combustion chamber/heat exchanger, I have bled all radiators and the heat exchanger of air (there wasn't any) the system is five years old. Any ideas?
Regards,
Jon
Having replaced a faulty PRV, renewed inhibitor, and recharged the system with help and advice from this forum my boiler has now developed an annoying "Droning" noise. Its loudest when it first fires up and slowly dies away after around 10 minutes. The sound seems to be comning from the combustion chamber/heat exchanger, I have bled all radiators and the heat exchanger of air (there wasn't any) the system is five years old. Any ideas?
Regards,
Jon
